The new US ambassador to the United Nations, Nikki Haley, has pledged to overhaul the world body and warned US allies that she will be “taking names” of countries that do not support Washington.

Haley made brief remarks to reporters as she arrived at the world body’s headquarters in New York to present her credentials to the UN secretary general, António Guterres.

“Our goal with the administration is to show value at the UN and the way that we’ll show value is to show our strength, show our voice, have the backs of our allies and make sure that our allies have our back as well,” Haley said.

“For those that don’t have our back, we’re taking names, we will make points to respond to that accordingly.”

Haley, who was South Carolina’s Republican governor when Trump picked her for the post, has little foreign policy and no US federal government experience.

France’s UN ambassador, François Delattre, and his British UN counterpart, Matthew Rycroft, said they looked forward to working with Haley. The United States, Britain and France, along with Russia and China, are permanent veto-wielding members of the UN security council.

After her meeting with Guterres, a US official said they had “a good and productive conversation about ways they can work together to reform the UN”.

Haley told reporters: “Everything that’s working, we’re going to make it better, everything that’s not working we’re going to try and fix, and anything that seems to be obsolete and not necessary we’re going to do away with.”

According to a draft executive order published by the Daily Beast, Trump wants a committee – including his secretary of state, attorney general and director of national intelligence – to carry out a one-year review of US funding to international organizations with the aim of almost halving voluntary funding.

The United States is the largest contributor to the United Nations, paying 22% of the $5.4bn core UN budget and 28% of the $7.9bn UN peacekeeping budget. These are assessed contributions – agreed by the UN general assembly – and not voluntary payments.

UN agencies, such as the UN Development Programme, the children’s agency Unicef, the World Food Programme and the UN Population Fund, are funded voluntarily.

Last year, Trump disparaged the 193-member world body on Twitter, after the United States abstained in a 23 December UN security council vote, allowing the adoption of a resolution demanding an end to settlement building by US ally Israel.

Trump, who had called on Barack Obama’s administration to veto the resolution, warned that “things will be different” at the United Nations after he took office.

