RALA is a multifunctional small GTPase of the RAS superfamily that regulates diverse cellular processes through distinct downstream effectors 1. As a GTP sensor, RALA controls GTP-dependent exocytosis of dense-core vesicles and forms a complex with the exocyst to regulate integrin-dependent membrane raft exocytosis and growth signaling 2. During mitosis, RALA stabilizes the intracellular bridge between dividing cells and controls mitochondrial fission by recruiting RALBP1 to phosphorylate and activate DNM1L 3. In obesity, elevated RalA expression promotes excessive mitochondrial fragmentation in white adipocytes by reversing inhibitory Drp1 phosphorylation, reducing oxidative capacity and contributing to metabolic dysfunction; RalA deletion prevents HFD-induced weight gain 3. RALA is critical for cancer cell survival and tumor initiation in pancreatic carcinoma, though RalB mediates metastasis 4. Emerging evidence identifies RALA as an independent poor prognostic factor in osteosarcoma, with upregulation promoting cell proliferation, migration, and invasion 5. Additionally, RALA participates in pathogenic bacterial exploitation of transferrin receptor transcytosis across the blood-brain barrier 6 and regulates Arc capsid secretion through multivesicular body pathways 7.