ubiquitin thiolesterase. similar to balbiani ring 1-related / BR1-related [Arabidopsis thaliana] (TAIR:AT1G78880.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO23246.1); contains domain PTHR10420 (PTHR10420); contains domain PTHR10420:SF11 (PTHR10420:SF11)