Probable calcium-dependent phospholipid-binding protein that may play a role in calcium-mediated intracellular processes. Plays a role in dendrite formation by melanocytes. Binds 3 Ca(2+) ions per C2 domain. Expressed in the cerebra and cerebellum of newborn brain. Expressed in the eye, lung and muscles but weakly expressed in the adult brain (at protein level) (PubMed:18614158). Expressed at the ventricular zone and subventricular zone areas, in the tectum, frontal cortex, ganglionic eminence, dorsal thalamus, hippocampus and tegmentum of the embryonic brain from 12.5 to 14.5 dpc. Expressed in neural progenitor cells (at protein level). Expressed in the embryonic brain from 10.5 to 17.5 dpc. Expressed in the telencephalon, mesencephalon and rhombencephalon areas from 11.5 to 12.5 dpc. Expressed in the developing central nervous system (CNS), such as the frontal cortex, hypothalamus and ventricular zones along the IV ventricle and aquaeductus mesencephali at 13.5 dpc (PubMed:18614158). Belongs to the copine family.