Catalyzes the reductive dechlorination of chloroethene (or vinyl chloride, VC) to ethene (PubMed:15294827). Can also reduce all dichloroethene (DCE) isomers, but not tetrachloroethene (PCE) or trichloroethene (TCE), at high rates (PubMed:15294827). Reduced methyl viologen can act as the artificial electron donor (PubMed:15294827). AH2 + chloroethene = A + chloride + ethene + H(+) (Z)-1,2-dichloroethene + AH2 = A + chloride + chloroethene + H(+) 1,1-dichloroethene + AH2 = A + chloride + chloroethene + H(+) Binds 2 [4Fe-4S] clusters. Cotranscribed with vcrB and vcrC. Predicted to be exported by the Tat system. The position of the signal peptide cleavage has been experimentally proven. Belongs to the PceA family.