He was the master of Onmyodo (way of Yin and Yang; occult divination system based on the Taoist theory of the five elements) similar to his father, KAMO no Tadayuki, and although there was no confirmation, he successively held the post of the Onmyo no kami (Director of Onmyoryo, or Bureau of Divination).
父である賀茂忠行と同じく陰陽道の達人で、確証はないが陰陽頭を歴任。