Enables protein domain specific binding activity; signaling receptor binding activity; and transcription coactivator activity. Involved in several processes, including COP9 signalosome assembly; calcium ion transmembrane transport via low voltage-gated calcium channel; and nervous system development. Acts upstream of or within several processes, including animal organ development; chordate embryonic development; and positive regulation of macromolecule metabolic process. Located in cell surface and extracellular space. Is active in glutamatergic synapse. Is expressed in several structures, including alimentary system; central nervous system; embryo ectoderm; genitourinary system; and sensory organ. Orthologous to human WNT3A (Wnt family member 3A). [provided by Alliance of Genome Resources, Apr 2022]