Plays a role in melanocyte differentiation; enhances dendrite outgrowth, melanin content and tyrosinase activity through the modulation of ERK and/or CREB pathways (PubMed:23999003). Expressed in mature peripheral blood neutrophils (at protein level) (PubMed:16376304). Expressed in heart, pancreas, liver and skeletal muscle (PubMed:11543631). Expressed in umbilical vein endothelial cells and melanocytes (PubMed:23999003). Up-regulated during neutrophil differentiation (PubMed:16376304). Up-regulated during neutrophil differentiation (PubMed:16376304). The C2 domain is necessary and sufficient to promote melanocyte dendrite outgrowth (PubMed:23999003). Belongs to the synaptotagmin family. Could be the product of a pseudogene. Encoded by an expressed retrotransposed copy of the SYT14 locus into an intron of TMPRSS11F.