. "Catalysis of the reaction: carnitine (mitochondrial) + acyl carnitine (cytoplasm) = carnitine (cytoplasm) + acyl carnitine (mitochondrial)." . . "carnitine:acyl carnitine antiporter activity" . "carnitine/acyl carnitine carrier activity" . "carnitine:acyl carnitine carrier activity" . "fatty acyl carnitine carrier" . . .