Artemis was a goddess of many...
1) Goddess of the Wilderness.
She was said to have been the protector of wilderness, and she protected all the forests and the animals in it with her nymphs. She also had mortal maiden disciples at her side, namely the Hyperborean Maidens.
2) Goddess of the Nymphs.
Being so heavily connected to wilderness, she is automatically the leader of the nymphs, especially the dryads. As a virgin goddess she was very protective of her purity and of those who chose to follow her. Therefore, when a close nymph of hers allowed herself to be seduced by her father Zeus, she exploded with fury and shot the nymph.
3) Goddess of the Hunt and Animals.
She would make sure the animals were plentiful and would control hunts from afar. However, being the goddess of contradiction that she was, she also hunted many of the animals she protected and occasionally hunted for the gods and goddesses of Mt. Olympus when she was called upon to do so.
Her main abilities:
Guardian of young children
Divinity of healing (Like her sibling Apollo)
Shape-shifting people/gods into animals ()
Could bring about sudden death and disease
Could grant strength and health