Seems to activate D-amino acid oxidase. Associates with D-amino acid oxidase (DAAO). Expressed in amygdala, caudate nucleus, spinal cord and testis. Disease susceptibility may be associated with variants affecting the gene represented in this entry. May be produced at very low levels due to a premature stop codon in the mRNA, leading to nonsense-mediated mRNA decay. May be produced at very low levels due to a premature stop codon in the mRNA, leading to nonsense-mediated mRNA decay.