The function of Ensembl gene identifier ENSG00000144550 (CPNE9, copine family member 9) is as follows. Probable calcium-dependent phospholipid-binding protein that may play a role in calcium-mediated intracellular processes (By similarity). Plays a role in dendrite formation by melanocytes (PubMed:23999003). {ECO:0000250|UniProtKB:Q99829, ECO:0000269|PubMed:23999003}.