Predicted to contribute to peptide alpha-N-acetyltransferase activity. Predicted to be involved in N-terminal peptidyl-methionine acetylation. Predicted to be located in Golgi apparatus and cytosol. Predicted to be part of NatB complex. Predicted to be active in cytoplasm. Is expressed in several structures, including brain; hair; heart; spinal cord; and stomach. Orthologous to human NAA25 (N-alpha-acetyltransferase 25, NatB auxiliary subunit). [provided by Alliance of Genome Resources, Apr 2022]