Mr. Ryan-Vuotto spoke about his abuse on Thursday, and plans to hold a news conference on Monday to encourage more victims to step forward. By going public, he becomes one of only a handful of Roman Catholic priests nationally who have spoken about their own clergy sexual abuse. He is also the first person to name Father Lott as an abuser, forcing a reassessment of a man some called a saint.

“This is not a happy day for me, and I’m not thrilled about it,” said Mr. Ryan-Vuotto, 55, who lives in the Albany area and works at a college convenience store. “But it is something I had to do from the deepest core of my being. If I’m going to be transparent and honest and expect that of others, then I need to do it.”

“I believe, I truly believe,” he added, “that although it is going to sully the name of someone a lot of people look up to, it’s truthful. And in the Bible, it says, the truth will set you free.”

Most victims of childhood sexual abuse in New York State have been unable to sue or file charges against their abusers because the statute of limitations requires that they report the abuse before age 23. Most victims are unable to come forward until they are older because of the trauma, psychologists say.

A group of legislators and victims’ advocates have pushed to relax the statute, but the bill has not passed the state Legislature, in part because of lobbying from Catholic bishops. This year, the bishops began offering an alternative form of justice to those who claimed abuse by their priests.