Works with phosphate acetyltransferase (pta) to capture exogenous propionate and regenerate propionyl-CoA during degradation of 1,2-propanediol (1,2-PD). ATP + propanoate = ADP + propanoyl phosphate Polyol metabolism; 1,2-propanediol degradation. Belongs to the acetokinase family. PduW subfamily. Truncated N-terminus.