Is predicted to encode a protein with the following domains: Receptor L domain; Furin-like cysteine-rich domain; Growth factor receptor domain 4; Receptor L-domain; Furin-like cysteine rich region; Growth factor receptor domain IV; Receptor L-domain superfamily; Growth factor receptor cysteine-rich domain superfamily; and Furin-like repeat. Is an ortholog of C. elegans let-23. In C. elegans, let-23 is involved in several processes, including positive regulation of vulval development; reproductive structure development; and vulval cell fate specification.