Promotes renal phosphate excretion and inhibits intestinal phosphate absorption (PubMed: 14962809, PubMed: 19005008). Promotes bone mineralization by osteoblasts and cartilage mineralization by chondrocytes (PubMed: 18162525, PubMed: 19998030, PubMed: 22766095). Regulates the mineralization of the extracellular matrix of the craniofacial complex, such as teeth, bone and cartilage (By similarity). Promotes dental pulp stem cell proliferation and differentiation (PubMed: 22341070).