Predicted to enable SNAP receptor activity; SNARE binding activity; and chloride channel inhibitor activity. Predicted to be involved in several processes, including Golgi vesicle transport; regulation of protein localization to plasma membrane; and retrograde transport, endosome to Golgi. Predicted to act upstream of or within protein transport. Located in Golgi apparatus and perinuclear region of cytoplasm. Is anchored component of membrane. Is expressed in central nervous system and dorsal root ganglion. Orthologous to human VTI1B (vesicle transport through interaction with t-SNAREs 1B). [provided by Alliance of Genome Resources, Apr 2022]