Catalyzes the transfer of the phosphoenolpyruvate moiety from enoylpyruvoyl-2-diphospho-5'-guanosine (EPPG) to 7,8-didemethyl-8-hydroxy-5-deazariboflavin (FO) with the formation of dehydro coenzyme F420-0 and GMP. 7,8-didemethyl-8-hydroxy-5-deazariboflavin + enolpyruvoyl-2-diphospho-5'-guanosine = dehydro coenzyme F420-0 + GMP + H(+) Cofactor biosynthesis; coenzyme F420 biosynthesis. Homodimer. Belongs to the CofD family.