The function of Ensembl gene identifier ENSG00000205923 (CEMP1, cementum protein 1) is as follows. May play a role in development of the periodontium which surrounds and supports the teeth by promoting the differentiation of multi-potent cells from the periodontal ligament into cementoblasts to form the cementum (PubMed:17509525, PubMed:21465469, PubMed:21929512). Binds hydroxyapatite and may promote the biomineralization of the cementum (PubMed:19393626). Also promotes cell proliferation (PubMed:17509525, PubMed:21929512, PubMed:26011628). {ECO:0000269|PubMed:17509525, ECO:0000269|PubMed:19393626, ECO:0000269|PubMed:21465469, ECO:0000269|PubMed:21929512, ECO:0000269|PubMed:26011628}.