Maybe, but how would they prove it?
Step 1 is for the police to catch you in a lie, any lie. If you're talking, that's actually pretty easy.
Step 2 is for the DA to convince the jury that if you lied about one thing, you're probably lying about everything.
Perhaps your defense attorney can get you off by arguing that you weren't lying. You were just confused from the stress of the incident. Then you're home free, except for your legal bills. And don't forget, after the criminal trial comes the civil trial. The intruder's family will probably sue you. More legal bills.
But perhaps your attorney won't be able to convince the jury that you were just confused, and not lying. Then you'll do 5 to 10 years for murder.
Moral of the story: Don't use deadly force unless you absolutely have to. And if you must talk to the police, don't lie.