Predicted to enable serine-type endopeptidase inhibitor activity. Predicted to be involved in negative regulation of endopeptidase activity and wound healing. Predicted to act upstream of or within negative regulation of peptidase activity. Predicted to be located in cytoplasm and extracellular region. Predicted to be active in extracellular space. Is expressed in several structures, including genitourinary system; immune system; mesothelium; respiratory system; and skin. Orthologous to human SERPINB2 (serpin family B member 2). [provided by Alliance of Genome Resources, Apr 2022]