Mice are edible. Snakes, dogs, cats, rodents, fish, frogs, turtles, insects, and most other animals are edible too. Don't eat the fur, bones or bowels (or poisonous parts), and you should be fine. Use safe food-handling techniques and cook it thoroughly. Chew well, and don't talk while you eat.
Is it sad that the last time I went to the zoo, I discussed each animal by what it might taste like?