I acquired the Mace of Molag Bar, but on my current character I don't want to have maces. Because this mace is my first weapon which has the soul trap enchantment, I tried to disenchant it. But for some reasons it didn't even show up among the items, I could disenchant.

Questions:
1) Is my enchant skill too low (currently ~50)?
2) The mace has two enchantments. Must I have the final enchant skill, which enables me to put two enchantments onto an item?
or
3 Are Daedric "god-weapons" categorically excluded from disenchanting?

This.
You cannot destroy any daedric artifact.
As the item is destroyed during the disenchanting process, you cannot disenchant an artifact.

Mace of Molag Bal cannot be disenchanted. Most unique items can't.

Ok, thx