Predicted to enable syntaxin binding activity. Predicted to be involved in several processes, including positive regulation of cell cycle G1/S phase transition; positive regulation of keratinocyte proliferation; and protein stabilization. Predicted to act upstream of or within cellular response to interferon-gamma; protein targeting; and regulation of glucose transmembrane transport. Predicted to be located in phagocytic vesicle. Predicted to be active in cytoplasmic vesicle. Orthologous to human STXBP4 (syntaxin binding protein 4). [provided by Alliance of Genome Resources, Apr 2022]