Enables Wnt-protein binding activity; endopeptidase activator activity; and receptor ligand activity. Involved in several processes, including regulation of gene expression; regulation of protein phosphorylation; and regulation of signal transduction. Acts upstream of or within several processes, including animal organ development; negative regulation of signal transduction; and regulation of endopeptidase activity. Located in extracellular space. Is expressed in several structures, including alimentary system; brain; embryo mesenchyme; eye; and genitourinary system. Orthologous to human SFRP2 (secreted frizzled related protein 2). [provided by Alliance of Genome Resources, Apr 2022]