Component of several N-terminal acetyltransferase complexes (By similarity). Inhibits the N-terminal acetylation activity of the N-terminal acetyltransferase NAA10-NAA15 complex (also called the NatA complex) (By similarity). Has chaperone-like activity preventing polyglutamine (polyQ) aggregation of HTT in neuronal cells probably while associated with the NatA complex (By similarity). May play a role in the NatA complex-mediated N-terminal acetylation of PCNP (By similarity).
Subcellular locations: Nucleus, Cytoplasm
Within the NatA/HYPK complex, may localize to ribosomes.