Predicted to enable cysteine-type endopeptidase activity and thiol-dependent deubiquitinase. Predicted to be involved in monoubiquitinated protein deubiquitination; regulation of DNA repair; and response to UV. Predicted to act upstream of or within skeletal system development. Predicted to be located in nucleoplasm. Predicted to be active in cytosol and nucleus. Orthologous to human USP1 (ubiquitin specific peptidase 1). [provided by Alliance of Genome Resources, Apr 2022]