Synonyms: RNA 3'-terminal phosphate cyclase activity, RNA cyclase activity, RNA-3'-phosphate:RNA ligase (cyclizing, AMP-forming)
Definition: Catalysis of the reaction: ATP + RNA 3'-terminal-phosphate = AMP + diphosphate + RNA terminal-2',3'-cyclic-phosphate.
RNA 3'-terminal phosphate cyclase (rtcA)
Unification Links: GO:0003963
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