Predicted to enable SNAP receptor activity and SNARE binding activity. Involved in endoplasmic reticulum to Golgi vesicle-mediated transport; synaptic vesicle to endosome fusion; and vesicle fusion with Golgi apparatus. Located in several cellular components, including cytoplasmic vesicle; neuronal cell body; and perinuclear region of cytoplasm. Part of SNARE complex. Orthologous to human VTI1A (vesicle transport through interaction with t-SNAREs 1A). [provided by Alliance of Genome Resources, Apr 2022]