The 19-year-old, who was born in London, has flown out with Martin O'Neill's squad for Friday's friendly against Turkey in Antalya.
Rice is then expected to link up with Ireland's Under-21s for a Euros qualifier against Azerbaijan on Tuesday.
"There's no decision to be made," Rice told Sky Sports News.
"I'm here with Ireland and I've been called up by Martin. I'm really looking forward to this week and I'm looking forward to getting to know the boys better.
"I haven't had a call from anyone at the FA. Not at all. England have never wanted me at underage level, it's always been Ireland."
Rice picked up the Republic of Ireland Under-19 Player of the Year gong at the FAI Awards on Sunday night.