Predicted to enable calcium ion binding activity and serine-type endopeptidase activity. Predicted to be involved in proteolysis; response to caffeine; and response to nicotine. Predicted to act upstream of or within digestion. Located in collagen-containing extracellular matrix. Is expressed in alimentary system; genitourinary system; and spleen. Orthologous to human PRSS3 (serine protease 3). [provided by Alliance of Genome Resources, Apr 2022]