Is GTA Advance canon to the GTA III Era?

[MrLanceVanceDance 1]

The canonicity of GTA Advance is debateable - not only is it the only GTA game to not be primarily developed by a Rockstar studio, it does not feature on Rockstar's Official Grand Theft Auto Website. It is also the only top-down game in the GTA III Era.

So Guys, what you you think? Do you reckon GTA Advance is canon to the GTA III Era or not?