Predicted to enable serine-type endopeptidase inhibitor activity. Predicted to be involved in negative regulation of peptidase activity. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Orthologous to human EPPIN-WFDC6 (EPPIN-WFDC6 readthrough). [provided by Alliance of Genome Resources, Apr 2022]