Enables SNARE binding activity and protein kinase binding activity. Predicted to be involved in several processes, including autophagosome membrane docking; endoplasmic reticulum to Golgi vesicle-mediated transport; and endoplasmic reticulum-Golgi intermediate compartment organization. Predicted to act upstream of or within protein localization to phagophore assembly site. Located in several cellular components, including COPII-coated ER to Golgi transport vesicle; endoplasmic reticulum-Golgi intermediate compartment; and smooth endoplasmic reticulum membrane. Orthologous to human STX17 (syntaxin 17). [provided by Alliance of Genome Resources, Apr 2022]