There are two muscles with name of Abductor digiti minimi. One is in the hand and another is in the foot.
Abductor Digiti Minimi of Hand
The Abductor minimi digiti or abductor digiti quinti is situated on the ulnar border of the palm of the hand.
It arises from the pisiform bone and from the tendon of the Flexor carpi ulnaris, and ends as a flat tendon inserts into the ulnar side of the base of the proximal phalanx of the little finger.
Abductor Digiti Minimi of Foot
The Abductor digiti minimi of the foot lies along the lateral border of the foot. It arises from the lateral process of the tuberosity of the calcaneus, from the under surface of the calcaneus between the two processes of the tuberosity, from the forepart of the medial process, from the plantar aponeurosis, and from the intermuscular septum between it and the Flexor digitorum brevis.
Its tendon, is inserted into the lateral side of the base of the first phalanx of the fifth toe.
Its function is to flex and abduct the fifth (little) toe.