IMO, there's a basenji back in her family - but something bigger too. She definitely has a basenji's eyes.
Not smelling like a 'dog' when wet is a basenji trait. If she smells like a dog, it does not mean there is no basenji in her, just that if she has that trait, it can be put in the 'basenji in background' column.
I am perhaps in the minority but in almost 40 years of breeding and living with Basenjis, I have yet to have one play 'catch' with a ball. Other dogs find them in the woods by the hundreds and carry them in their mouths, often to the disgust of their owners if they are particularly dirty (and therefore desirable).
My pack - never a one.
The color and the white feet and tail tip are the only 'basenji' features that I can see in this lovely doggie. Nothing else screams 'BASENJI' at me.
However, if it really matters to your enjoyment of such a super pet, you can always get a DNA test. Do let us know the results !