Involved in the biosynthesis of the antifungal agent validamycin A (PubMed:16725283). Catalyzes the phosphorylation of valienone and validone to their 7-phosphate derivatives (By similarity). ATP + valienone = ADP + H(+) + valienone 7-phosphate ATP + validone = ADP + H(+) + validone 7-phosphate Belongs to the ROK (NagC/XylR) family.