Predicted to enable calcium ion binding activity and cysteine-type deubiquitinase activity. Is an ortholog of C. elegans C34F6.9 and K02C4.3 and members of the C. elegans usp gene class including H34C03.2. In C. elegans,
cyk-3 is involved in several processes, including cellular component organization; positive regulation of TORC1 signaling; and regulation of asymmetric protein localization involved in cell fate determination.