May suppress DAO (D-amino acid oxidase) and SOD1 activity and promote their degradation (PubMed:18544534, PubMed:20521334, PubMed:21679769, PubMed:30037290). Has conversely also been suggested to function as a DAO activator (PubMed:12364586, PubMed:24362575, PubMed:29114206). May stimulate the degradation of DDO (D-aspartate oxidase) (PubMed:37805834). May play a role in mitochondrial fission (PubMed:17684499). {ECO:0000269|PubMed:12364586, ECO:0000269|PubMed:17684499, ECO:0000269|PubMed:18544534, ECO:0000269|PubMed:20521334, ECO:0000269|PubMed:21679769, ECO:0000269|PubMed:24362575, ECO:0000269|PubMed:29114206, ECO:0000269|PubMed:30037290, ECO:0000269|PubMed:37805834}. This is the function of DAOA (D-amino acid oxidase activator, Ensembl gene identifier ENSG00000182346).