Predicted to enable phosphatidylinositol binding activity. Predicted to be involved in several processes, including melanocyte differentiation; melanosome transport; and minus-end-directed organelle transport along microtubule. Predicted to act upstream of or within developmental pigmentation. Predicted to be located in late endosome membrane and melanosome membrane. Predicted to be intrinsic component of organelle membrane. Predicted to be part of protein-containing complex. Predicted to be active in melanosome. Orthologous to human MREG (melanoregulin). [provided by Alliance of Genome Resources, Apr 2022]