Predicted to enable co-receptor binding activity and receptor antagonist activity. Predicted to be involved in negative regulation of canonical Wnt signaling pathway. Predicted to act upstream of or within Wnt signaling pathway and negative regulation of hair follicle placode formation. Predicted to be active in extracellular space. Orthologous to human DKK4 (dickkopf WNT signaling pathway inhibitor 4). [provided by Alliance of Genome Resources, Apr 2022]