Predicted to enable serine-type endopeptidase activity. Acts upstream of or within germ cell development and spermatogenesis. Is anchored component of plasma membrane. Is expressed in cerebral cortex mantle layer; diencephalon lateral wall mantle layer; midbrain mantle layer; pretectum; and telencephalon mantle layer. Orthologous to human PRSS43P (serine protease 43, pseudogene). [provided by Alliance of Genome Resources, Apr 2022]