Long ago, I had a kitten with similar behavior. I had gotten it particularly to catch mice. It just had no interest in chasing things. I even put the kitten in a large area with a live mouse and the kitten just ignored the mouse.
I gave the kitten to some friends who wanted a cat for a pet, and I adopted an adult cat who was a proven mouse catcher.
A few months later the kitten grew into a cat, and the family who had it now, said she grew up to be a great mouse catcher.
To answer your questions:
Is this behavior normal?
It is not abnormal.
How do I teach her to hunt?
Keep playing with her, and encouraging her to chase toys. Rewarding chase behavior with treats will likely help.