They did have dogs as domesticated animals, and often used them as beasts of burden. Many of the arctic and sub-arctic tribes had them trained to pull snow sleds, and several of the plains tribes had them trained to pull modified litters or to carry very small loads on their backs.

I do not know if they raised them for companionship or hunting like Europeans though.

Absolutely, huskies, Alaskan Malamute, chihuahuas... also Carolina dogs, Mexican hairlesses, Peruvian hairless, and many more. Apparently archaeological evidence of domesticated dogs in the Americas has been found back to 10,000 years (van Asch et al.).

Many Indigenous dog breeds, such as the Tahltan dog and Salish wool dog of Eastern Alaskan/Western Canada, are now extinct. Many more interbred with introduced species of dogs.

Prior to contact, dogs were companions, hunters, watch dogs, sled dogs, and travois-pullers (great pic from ND), while others were bred for food or their hair, such as the Salish wood dog, whose wool was once woven into items such as Chilkat blankets.

Follow up: Are dogs thought to have domesticated pre-Bering Strait crossing, or independently by the Native Americans?