Haha, do it. It's not too out there, it's cute. I say it's not too out there because there's names that mean Lion. So you might as well.
Personally, I don't like many animal names for human first names. I don't like Lion, Wolf, Fox etc...Strangely enough, I don't feel the same way regarding bird names. I don't mind something more subtle like Peregrine (eg. Falcon) or using Wren or Lark in the middle spot. Maybe it's a mammal vs. bird issue for me...or maybe it's the sound of the names. Some of the names are full of macho swagger that turns me off completely. It's almost like parents are trying to pick the most masculine name for their son to send an agressive message to the world (I named my boy Lion and hear him roar!).
I agree I think it is a cool name, cute name, would be cool to meet one. But I think there are alternatives as well. Plus my boyfriend would never allow that name lol way too adventurous for him. I was just curious to see what others thought about it!
Great for a child, not so much for an adult. However, it could be a cool middle name.