Glutamine amidotransferase-like protein; part of the gene cluster that mediates the biosynthesis of the yellow pigment chrysogine (PubMed:28708398). Pyruvic acid and anthranilic acid are likely substrates for the nonribosomal peptide synthetase chry1/NRPS14, with pyruvic acid adenylated by the first A domain and anthranilic acid by the second (Probable). If pyruvic acid and anthranilic acid are merged and released from chry1/NRPS14 by hydrolysis, a subsequent amidation would lead to 2-pyruvoylaminobenzamide (Probable). This process is probably catalyzed by the amidotransferase chry2 using glutamine as amino donor (Probable). The dehydrogenase chry5 that has a terminal berberine bridge domain for C-N cyclization could catalyze the cyclization of 2-pyruvoylaminobenzamide to yield acetyl-4(3H)-quinazolidinone (Probable). A final reduction of acetyl-4(3H)-quinazolidinone catalyzed by the oxidoreductase chry4 would result in chrysogine (Probable). Pigment biosynthesis. Belongs to the peptidase C26 family.