Well, because it's copper and has a spout and end end to connect to a spigot, it must be for plumbing. I was thinking for the bath but it is a tad too sharp I think. Perhaps a very well built outdoor garden feature . . . pond with a fountain . . ? I thought it looked like a bullock with horns.
Yes it is a fascinating piece and pic, would love to know what it IS used for or WAS used for....looks to me like the pipe end fits onto some sort of water feature and water comes out of the mouth along the long tongue!!
'Animal' looks like a stylised version of 'Bast', the Egyptian cat goddess.
Look at the ears, then Google a picture of 'Bast'.
Cats groom themselves constantly, which dogs do not.
Picture, to me, looks more cat-like, than dog-like.