The 60-year-old avoided questions about the Dutch playmaker's future at a press conference ahead of Wednesday's game against Lecce
The 27-year-old has been linked with a move away from Serie A for quite some time now, with Manchester United reportedly the prime candidates for his services.
Ranieri, however, avoided questions about Sneijder's future at a press conference before Wednesday's game against Lecce.
"I don't want to think of a team without Sneijder because he is the feather in our cap," the 60-year-old said.
"I am used to talking between four walls and if I have something to say about transfers, I say it to [Inter president Massimo] Moratti.
Ranieri then touched on Wednesday's opponents, saying: "Lecce are last in the standings, but from what I have seen I think this place does not represent their true ability.
"They have good, quality players, and they will give us a lot of trouble tomorrow night.
"They have to be taken seriously and we should always be alert to the threat they pose. We have to close them down, cover all the spaces and keep our guard. We want to deliver a great performance against them."