Predicted to enable Wnt-protein binding activity. Predicted to be involved in canonical Wnt signaling pathway and non-canonical Wnt signaling pathway. Predicted to act upstream of or within Wnt signaling pathway and cell differentiation. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Is expressed in several structures, including endoderm; pronephric duct; tail bud; yolk; and yolk syncytial layer. Orthologous to human SFRP1 (secreted frizzled related protein 1).