Enables aminopeptidase activity. Predicted to be involved in several processes, including cellular response to hypoxia; peptide catabolic process; and positive regulation of protein targeting to mitochondrion. Predicted to be located in cytosol. Predicted to be active in cytoplasm. Orthologous to human NPEPPS (aminopeptidase puromycin sensitive). [provided by Alliance of Genome Resources, Apr 2022]