t-SNARE involved in diverse vesicle trafficking and membrane fusion processes, including cell plate formation. Interacts with KNOLLE to form a t-SNARE complex. Does not interact with SYP21, VTI12 or VPS45. Cell plate during cell division. Expressed in roots, stems, flower, siliques, expanding leaves, but not in mature leaves. Not limited to dividing cells. Belongs to the novel plant SNARE family.