The function of RTKN (rhotekin, ENSG00000114993) is as follows. Mediates Rho signaling to activate NF-kappa-B and may confer increased resistance to apoptosis to cells in gastric tumorigenesis. May play a novel role in the organization of septin structures. {ECO:0000269|PubMed:10940294, ECO:0000269|PubMed:15480428, ECO:0000269|PubMed:16007136}.