The former Portsmouth midfielder, who brought global attention to the issue of racism in football after leading his fellow Milan players off the pitch during a friendly in Italy after being abused, has been appointed to FIFA's new anti-discrimination task force.
Ghana international Boateng said there should be zero tolerance for racism.
Asked if he would walk off again if abused, he told CNN World Sport: "I think we should not accept and tolerate it anywhere, in any game. Even if it's a World Cup final, if it's a Champions League final.
"For me, honestly, I would do it even in the Champions League final. If I feel it is racial abuse, I would do it even in the Champions League final.
"Of course it's a different situation - there's a lot of money involved and if my team-mates would follow me, I don't know because it's a totally different situation. But for my part, I would do exactly the same."
FIFA president Sepp Blatter said he was delighted that Boateng has agreed to join the task force and stressed the need for tougher sanctions for racism.
"I've said before, empty stadiums or imposing fines is inadequate. Sanctions have to be severe - points deductions or disqualification," he said on Twitter.
"FIFA needs strong personalities like Kevin-Prince Boateng to bring experience and credibility. I invited him to be part of FIFA's anti-discrimination task force and I'm delighted that he accepted."