Predicted to enable BMP binding activity and BMP receptor activity. Acts upstream of or within several processes, including animal organ development; negative regulation of cell fate commitment; and negative regulation of signal transduction. Located in extracellular space. Is expressed in several structures, including alimentary system; genitourinary system; limb; nervous system; and sensory organ. Orthologous to human SOSTDC1 (sclerostin domain containing 1). [provided by Alliance of Genome Resources, Apr 2022]