Interacts with the host phosphatase PP1 catalytic subunit (PPP1CB) and recruits it to dephosphorylate EIF2S1/eIF2alpha and therefore restores the host translation that has been shut-down by the host. Also inhibits the EIF2S1/eIF2alpha-ATF4-DDIT3/CHOP pathway. Interacts (via C-terminus) with host PPP1CB. Expressed in the late phase of the viral replicative cycle. Belongs to the asfivirus DP71L family.