GTPase involved in activation of the TORC1 signaling pathway, which promotes growth and represses autophagy in nutrient-rich conditions (PubMed:26510498, PubMed:15989961, PubMed:32801125). Also required for TORC1 inactivation during nitrogen starvation (By similarity). Required for intracellular sorting of GAP1 out of the endosome (PubMed:16732272). Involved in the regulation of microautophagy (PubMed:15989961). Heterodimer; with GTR1 (PubMed:21816923). Component of the GSE complex composed of GTR1, GTR2, SLM4, MEH1 and LTV1 (PubMed:16732272). Component of the EGO complex, at least composed of GTR2, SLM4 and MEH1 (PubMed:15989961). Interacts with GTR1; the interaction is direct (PubMed:21816923). Abnormal punctate localization of TOR1 (PubMed:32801125). Sensitive to high hydrostatic pressure (PubMed:32801125). Resistance to tunicamycin (endoplasmic reticulum stressor) administered together with FK506 (calcineurin inhibitor) (PubMed:26510498). Present with 2610 molecules/cell in log phase SD medium. Belongs to the GTR/RAG GTP-binding protein family.