Predicted to enable GTPase activator activity. Predicted to be involved in activation of GTPase activity; intracellular protein transport; and regulation of autophagosome maturation. Predicted to act upstream of or within autophagy. Predicted to be located in cytoplasmic vesicle. Predicted to be active in autophagosome. Orthologous to human TBC1D25 (TBC1 domain family member 25). [provided by Alliance of Genome Resources, Apr 2022]