. "Catalysis of the endonucleolytic cleavage at a junction such as a reciprocal single-stranded crossover between two homologous DNA duplexes (Holliday junction)." . . "crossover junction endodeoxyribonuclease activity" . "crossover junction endoribonuclease activity" . "cruciform-cutting endonuclease activity" . "endo X3" . "Endo X3 activity" . "endodeoxyribonuclease RUS activity" . "endonuclease RuvC activity" . "endonuclease VII activity" . "endonuclease X3 activity" . "Hje endonuclease activity" . "Holliday junction endonuclease CCE1 activity" . "Holliday junction nuclease activity" . "Holliday junction resolvase activity" . "Holliday junction-cleaving endonuclease activity" . "Holliday junction-resolving endoribonuclease activity" . "resolving enzyme CCE1 activity" . "RusA endonuclease activity" . "RusA holliday junction resolvase" . "RusA Holliday junction resolvase activity" . "RuvC endonuclease activity" . "SpCCe1 holliday junction resolvase" . "SpCCe1 Holliday junction resolvase activity" . . . .