Predicted to contribute to guanyl-nucleotide exchange factor activity and molecular adaptor activity. Predicted to be involved in several processes, including cellular response to amino acid stimulus; positive regulation of TOR signaling; and protein localization to lysosome. Predicted to be located in intracellular membrane-bounded organelle. Predicted to be part of Ragulator complex. Predicted to be active in lysosome. Orthologous to human LAMTOR4 (late endosomal/lysosomal adaptor, MAPK and MTOR activator 4). [provided by Alliance of Genome Resources, Apr 2022]