Synaptotagmin family member which does not bind Ca(2+)  (By similarity). Involved in neuronal dense core vesicles (DCVs) mobility through its interaction with KIF1A. Upon increased neuronal activity, phosphorylation by MAPK8/JNK1 destabilizes the interaction with KIF1A and captures DCVs to synapses (By similarity). Plays a role in dendrite formation by melanocytes .
Subcellular locations: Cytoplasmic vesicle, Secretory vesicle, Neuronal dense core vesicle membrane
Expressed in melanocytes . Expressed in brain. Within brain, expression is highest in hippocampus, with substantial levels also detected in amygdala and thalamus .