Predicted to enable serine-type endopeptidase inhibitor activity and steroid binding activity. Predicted to be involved in negative regulation of endopeptidase activity. Predicted to act upstream of or within glucocorticoid metabolic process. Predicted to be active in extracellular space. Human ortholog(s) of this gene implicated in corticosteroid-binding globulin deficiency. Orthologous to human SERPINA6 (serpin family A member 6). [provided by Alliance of Genome Resources, Apr 2022]