Predicted to enable peptidase activator activity and serine-type endopeptidase activity. Predicted to be involved in positive regulation of peptidase activity and proteolysis. Predicted to be located in extracellular space. Is expressed in brain; eye; lung; reproductive system; and stomach. Orthologous to human PRSS22 (serine protease 22). [provided by Alliance of Genome Resources, Apr 2022]