FAD binding / catalytic/ tRNA dihydrouridine synthase. similar to nitrogen regulation family protein [Arabidopsis thaliana] (TAIR:AT5G47970.1); similar to nitrogen regulation family protein [Arabidopsis thaliana] (TAIR:AT5G47970.2); similar to unnamed protein product [Vitis vinifera] (GB:CAO40819.1); contains InterPro domain Dihydrouridine synthase, DuS; (InterPro:IPR001269); contains InterPro domain Aldolase-type TIM barrel; (InterPro:IPR013785)