Atypical Ras-like protein that acts as a potent regulator of NF-kappa-B activity by preventing the degradation of NF-kappa-B inhibitor beta (NFKBIB) by most signals, explaining why NFKBIB is more resistant to degradation. May act by blocking phosphorylation of NFKBIB and mediating cytoplasmic retention of p65/RELA NF-kappa-B subunit. It is unclear whether it acts as a GTPase. Both GTP- and GDP-bound forms block phosphorylation of NFKBIB. {ECO:0000269|PubMed:10657303, ECO:0000269|PubMed:12672800, ECO:0000269|PubMed:15024091}. This is the function of NKIRAS1 (NFKB inhibitor interacting Ras like 1, ENSG00000197885).