So I've recently had a wizard player ask if they were imbue their Homunculus Familiar with ability to cast Magic Fang, using the Spell-Like Ability Improvement listed in the Improved Homunculi section in the bottom portion Homunculus bestiary entry, if their Homunculus would be able to use it on itself. I initially thought that, no the Homunculus cannot be affected by magic fang as it is not a living creature. However the only forum discussion I could find on the subject 'Magic Items for Golems' didn't address this issue at all. Instead they discussed the issue of a constructs spell immunity. I am of the opinion the Homunculus, being intelligent, could lower any spell immunity it may have, so I am not worried about that issue. However the fact that this was never mentioned leads me to believe I am over looking something when it comes to whether or not a Homunculus is a living creature.
TL;DR Can Homunculi be affected by magic fang?