Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. May play a role in the repair of noise-induced stereocilia gaps thereby maintains hearing sensitivity following loud noise damage (By similarity). {ECO:0000250|UniProtKB:P63260, ECO:0000305|PubMed:29581253}. This is the function of Ensembl gene identifier ENSG00000184009 (ACTG1, actin gamma 1).