Predicted to enable several functions, including guanyl ribonucleotide binding activity; retromer complex binding activity; and small GTPase binding activity. Involved in lipophagy. Acts upstream of or within with a positive effect on establishment of vesicle localization. Located in several cellular components, including late endosome membrane; lipid droplet; and phagophore assembly site membrane. Is extrinsic component of lysosome membrane. Is active in lysosome. Is expressed in limb mesenchyme and lung mesenchyme. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease type 2B. Orthologous to human RAB7A (RAB7A, member RAS oncogene family). [provided by Alliance of Genome Resources, Apr 2022]