cysteine-type peptidase. similar to Ulp1 protease family protein [Arabidopsis thaliana] (TAIR:AT1G10570.2); similar to Ulp1 protease family protein [Arabidopsis thaliana] (TAIR:AT1G10570.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO40892.1); contains InterPro domain Peptidase C48, SUMO/Sentrin/Ubl1; (InterPro:IPR003653)