The function of RIT1 (Ras like without CAAX 1, ENSG00000143622) is as follows. Plays a crucial role in coupling nerve growth factor (NGF) stimulation to the activation of both EPHB2 and MAPK14 signaling pathways and in NGF-dependent neuronal differentiation (PubMed:15632082). Involved in ELK1 transactivation through the Ras- MAPK signaling cascade that mediates a wide variety of cellular functions, including cell proliferation, survival, and differentiation (PubMed:23791108). Recognized by LZTR1, which mediates its ubiquitination by a BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex (PubMed:40934300). {ECO:0000269|PubMed:15632082, ECO:0000269|PubMed:23791108, ECO:0000269|PubMed:40934300}.