By Eric Marrapodi, CNN Belief Blog Co-Editor

Washington (CNN) - Republican presidential candidate Michele Bachmann has long been a darling of conservative evangelicals, but shortly before announcing her White House bid, she officially quit a church she’d belonged to for years.

Bachmann, a Minnesota congresswoman, and her husband, Marcus, withdrew their membership from Salem Lutheran Church in Stillwater, Minnesota, last month, according to church officials.

The Bachmanns had been members of the church for more than 10 years, according to Joel Hochmuth, director of communications for the Wisconsin Evangelical Lutheran Synod, the broader denominational body of which Bachmann’s former church is a member.

The church council granted the Bachmanns’ request to be released from their membership on June 21, Hochmuth said.

After declaring at the CNN/WMUR/New Hampshire Union Leader presidential debate that she would seek the nomination, Bachmann formally announced her presidential bid June 27 in Waterloo, Iowa.

The Bachmanns approached their pastor and verbally made the request “a few weeks before the church council granted the request,” Hochmuth said. He added, “they had not been attending that congregation in over two years. They were still on the books as members, but then the church council acted on their request and released them from membership.”

Bachmann had listed her membership in the church on her campaign site for congress in 2006. She lists no church affiliation on her campaign website or her official congressional website.

Hochmuth said that a change in membership is not out of the ordinary. “You have people who are on the books as members, but they may have gone on to another church; they may not be attending a church anywhere. There’s all sorts of circumstances.”

A similar request for membership is to transfer membership from one church to another within the denomination. But that does not appear to be the case with the Bachmanns, according to Hochmuth, who said that to his knowledge, the couple was no longer attending a church within the Wisconsin Evangelical Lutheran Synod.

Pastor Marcus Birkholz has been at the helm of Salem Lutheran Church for nearly three decades. When asked about the Bachmanns leaving the church, he said, “I’ve been asked to make no comments regarding them and their family.”

Bachmann was asked about her status with the church on Thursday at Reagan National Airport as she headed to catch a flight. When asked about her pastor, she asked, “Which one?” An aide quickly hustled her away, noting that they were late for a flight.

The Bachmann campaign declined to immediately respond to a request for further comment Friday.

Becky Rogness, a spokesperson in Bachmann’s congressional office, said the Congresswoman now attends a nondenominational church in the Stillwater area but did not know the name of the church or how long she had been attending.

Hochmuth said that, “My understanding of the situation was the timing of the request for release was far more coincidental than strategic.”

The Wisconsin Evangelical Lutheran Synod has come under criticism from some Catholics for its views on the papacy, an institution that the denomination calls the Antichrist.

"We identify the Antichrist as the Papacy," the denomination's website says. "This is an historical judgment based on Scripture."

The Catholic League for Religious and Civil Rights issued a statement Thursday about Bachmann's denomination, saying it's "regrettable that there are still strains of anti-Catholicism in some Protestant circles."

"But we find no evidence of any bigotry on the part of Rep. Michele Bachmann," the statement continued. "Indeed, she has condemned anti-Catholicism. Just as President Barack Obama is not responsible for the views of Rev. Jeremiah Wright, Rep. Bachmann must be judged on the basis of her own record."

The debate over the legitimacy of the papacy goes back to the Protestant Reformation. The Wisconsin Evangelical Lutheran Synod's namesake is Martin Luther, who led the 16th century Reformation and who opposed the papacy.

“The issue of the papacy as the Antichrist does go back to Luther - he did use that terminology,” said Professor George C. Heider, theology chair at Valparaiso University, a Lutheran school in Indiana.

“Luther’s point was, that in his view, the pope was so obstructing the gospel of God’s free love in Jesus, even though he wore all the trappings of a leader in the church," Heider said. "He was functioning as the New Testament describes it as the Antichrist.”

Still, Heider notes that Roman Catholics and Lutherans have close ties today. They recognize each other's baptisms, a point of contention in relations between the Catholic Church and other Protestant denominations.

Salem Lutheran Church still maintains some ties with the Bachmann family. It lists a Christian counseling center operated by Bachmann’s husband on its website under special member services for confidential counseling.

Hochmuth said there are no formal ties between the counseling center and the denomination but added that it is not uncommon for churches to link off to members’ websites as in this case.

Bachmann and Associates has faced accusations that it uses a controversial therapy that encourages gay and lesbian patients to change their sexual orientation.

In an interview with the Minnesota Star Tribune published Friday, Marcus Bachmann did not deny that he or other counselors at his clinic used the technique but said they did so only at the request of a patient.

"Is it a remedy form that I typically would use?” he said. "It is at the client's discretion."

Salem Lutheran Church has about 800 members and holds three services each weekend. The Wisconsin Evangelical Lutheran Synod is often referred to as theologically conservative. The denomination opposes same-sex marriage and abortion, both positions Bachmann has long endorsed politically.

The denomination has approximately 390,000 members in 48 states and 1,300 congregations in the United States and Canada.

Presidential candidates’ affiliation with churches and pastors played a dramatic role in the 2008 campaign for president.

Then-candidate Barack Obama resigned from his Chicago church in May 2008 after videos surfaced of his longtime pastor, the Rev. Jeremiah Wright, delivering fiery sermons that criticized certain U.S. policies.

In the speeches, Wright suggested that the U.S. government may be responsible for the spread of AIDS in the black community and equated some American wartime activities to terrorism.

Wright officiated Obama’s wedding and baptized his children, and the Obamas were members at Wright’s church for years. After a sustained attention on Wright, Obama distanced himself from his former pastor.

During the same election cycle, Republican presidential nominee John McCain rejected endorsements from two prominent pastors, John Hagee and Rod Parsley, for controversial statements from the pastors’ pasts.