Predicted to enable SNAP receptor activity and SNARE binding activity. Predicted to be involved in intracellular protein transport; synaptic vesicle fusion to presynaptic active zone membrane; and vesicle docking. Predicted to be located in cytoplasm and membrane. Predicted to be part of SNARE complex. Predicted to be active in presynaptic active zone membrane and synaptic vesicle. Predicted to be integral component of membrane. Is expressed in several structures, including alimentary system; brain; genitourinary system; respiratory system; and thymus. Orthologous to human STX19 (syntaxin 19). [provided by Alliance of Genome Resources, Apr 2022]