2',3'-cyclic GMP-AMP synthase activity https://github.com/geneontology/go-ontology/issues/21980 https://github.com/geneontology/go-ontology/issues/30193 EC:2.7.7.86 Reactome:R-HSA-3244614 Catalysis of the reaction: ATP + GTP = 2 diphosphate + cyclic G-P(2'-5')A-P(3'-5') (cyclic 2',3' GAMP). RHEA:42064 cyclic-GMP-AMP synthase activity dph molecular_function cyclic 2',3' GAMP synthase activity 2',3' cyclic-GMP-AMP synthase activity 2',3' cyclic GMP-AMP synthase activity 2013-01-04T07:17:57Z GO:0061501 cyclic GMP-AMP synthase activity