The Sheltie Tzu is a designer dog breed, a cross between the Shetland Sheepdog and the Shih Tzu. Known for its friendly and social nature, this breed often exhibits the intelligence of the Sheltie and the affectionate demeanor of the Shih Tzu. Typically, they have a medium-length coat, often requiring regular grooming, and are adaptable to both apartment living and larger spaces. They are energetic and enjoy companionship, making them ideal family pets.

As the Sheltie Tzu is a hybrid breed between the Shetland Sheepdog and the Shih Tzu, it does not have a specific native region. These are domesticated dogs bred primarily in North America and other regions for companionship.

The Sheltie Tzu is typically kept as a household pet. Therefore, its 'habitat' is primarily a domestic environment, often in urban or suburban settings. It thrives in environments where it can interact regularly with humans and has access to outdoor spaces for exercise.

As a companion animal, the Sheltie Tzu's ecological niche is that of a domestic pet. It is not adapted to survive in the wild and relies on human care for food, shelter, and companionship. Their role may include providing emotional support and companionship to their human owners.