Predicted to enable several functions, including enzyme binding activity; phosphatidylcholine binding activity; and retinoic acid binding activity. Involved in spermatogenesis. Predicted to be located in several cellular components, including extracellular exosome; platelet dense tubular network; and secretory granule. Predicted to be part of several cellular components, including protein C inhibitor-KLK3 complex; protein C inhibitor-PLAT complex; and protein C inhibitor-PLAU complex. Predicted to be active in extracellular space. Is expressed in several structures, including epithelium; genitourinary system; gut; musculoskeletal system; and skin. Orthologous to human SERPINA5 (serpin family A member 5). [provided by Alliance of Genome Resources, Apr 2022]