Is predicted to encode a protein with the following domains: Kelch-type beta propeller; Spermadhesin, CUB domain superfamily; Galactose oxidase, central domain; Kelch motif; Laminin-type EGF domain; EGF-like domain; CUB domain; Laminin EGF domain; and PSI domain. Is an ortholog of C. elegans
atrn-1.