Predicted to enable receptor antagonist activity and transforming growth factor beta binding activity. Acts upstream of or within several processes, including muscle cell development; negative regulation of DNA binding activity; and roof of mouth development. Located in extracellular region. Orthologous to human WFIKKN1 (WAP, follistatin/kazal, immunoglobulin, kunitz and netrin domain containing 1). [provided by Alliance of Genome Resources, Apr 2022]