Description: Catalysis of the reaction: RNA uridine = RNA pseudouridine. Conversion of uridine in an RNA molecule to pseudouridine by rotation of the C1'-N-1 glycosidic bond of uridine in RNA to a C1'-C5.
Synonyms:tRNA-pseudouridine synthase activity,
tRNA-uridine uracilmutase activity,
transfer RNA pseudouridine synthetase activity,
transfer ribonucleate pseudouridine synthetase activity,
tRNA-uridine isomerase activity,
tRNA-pseudouridine synthase I activity,
tRNA pseudouridylate synthase I activity