2-dehydro-3-deoxy-D-galactonate + ATP = 2-dehydro-3-deoxy-6-phospho-D-galactonate + ADP + H(+) Carbohydrate acid metabolism; D-galactonate degradation; D-glyceraldehyde 3-phosphate and pyruvate from D-galactonate: step 2/3. Part of the dgoRKADT operon, which encodes proteins for the metabolism of D-galactonate (PubMed:30455279). Negatively regulated by DgoR (PubMed:30455279). Expression is induced in the presence of D-galactonate (PubMed:30455279). Deletion mutant cannot grow on D-galactonate. Belongs to the DgoK family.