Enables identical protein binding activity and thiol-dependent deubiquitinase. Involved in positive regulation of apoptotic process; protein deubiquitination; and regulation of protein stability. Predicted to be located in XY body and cytoplasm. Predicted to be part of protein-containing complex. Predicted to be active in cytosol and nucleus. Orthologous to human USP7 (ubiquitin specific peptidase 7). [provided by Alliance of Genome Resources, Apr 2022]