The protein encoded by this gene is a transmembrane (type I) heparan sulfate proteoglycan that functions as a receptor in intracellular signaling. The encoded protein is found as a homodimer and is a member of the syndecan proteoglycan family. This gene is found on chromosome 20, while a pseudogene has been found on chromosome 22.,SDC4,SYND4,Signal Transduction,Cell Biology & Developmental Biology,Cell Adhesion,Cytoskeleton,Neuroscience,SDC4