Predicted to enable signaling receptor binding activity. Acts upstream of or within in utero embryonic development. Predicted to be active in cell surface and extracellular region. Is expressed in several structures, including diaphragm; genitourinary system; gut; hemolymphoid system gland; and trigeminal nerve. Orthologous to human EGFL8 (EGF like domain multiple 8). [provided by Alliance of Genome Resources, Apr 2022]