A case involving a Belfast bakery, that refused to make a cake with a pro-same-sex marriage slogan for a customer, has been referred to the European Court of Human Rights.
Ashers Baking was found guilty of discrimination in 2015 for refusing to make a cake for Gareth Lee.
Britain's Supreme Court overturned the ruling in 2018.
Mr Lee requested a cake with the words "Support Gay Marriage" iced on top, but the owners of the bakery refused due to their Christian beliefs.
The bakery has said its objection was to the message on the cake, not the customer.
Mr Lee's legal bid in Europe's highest court will argue that the British Supreme Court "failed to give appropriate weight" to him under the European Convention of Human Rights.
Ciaran Moynagh, the lawyer representing Gareth Lee, said: "The Supreme Court judgement... it creates the risk that some people may fear going into certain shops."
Mr Moynagh added it is "a dangerous position for minority groups and vulnerable people..."
Ashers Baking declined to comment.
Opponents of Mr Lee's case have said the bakery's refusal to make the case should not be called discrimination.
Peter Tatchell, a veteran British LGBT rights campaigner, told the Thomson Reuters Foundation that "Ashers did not refuse to serve a gay customer, which would have been wrong and rightly illegal.
"What they did was decline to put a 'support gay marriage' message on a cake.
"Equally, I don't believe a gay baker should be compelled to decorate a cake opposing gay marriage."
