Auxillary component of the N-terminal acetyltransferase C (NatC) complex which catalyzes acetylation of N-terminal methionine residues. Involved in regulation of apoptosis and proliferation of smooth muscle cells. Component of the N-terminal acetyltransferase C (NatC) complex, which is composed of NAA35, NAA38 and NAA30. Belongs to the MAK10 family. PubMed:16484612 decribes a Naa35/Egap-containing complex as evolutionary conserved NatC complex; however, the mMak3 protein investigated in this context corresponds to mammalian NAA50 and not NAA30 and its interaction with NAA35 is ambiguous. Contaminating sequence. Potential poly-A sequence.