Mouse/Hampster Cage (Parkstone BH14)

Unfortunately our cat bought home a mouse. But it's not a wild mouse. It's looks like a baby white pet mouse.
Although I have put it in an spare glass fish tank. I Woukd prefer to put in the correct environment.
So if anyone has a hampster/Mouse cage.
It will be very much appreciated.

I am trying to find the Onwer of this pet mouse. I have made a post on the lost and found pets on Facebook.

If any already has any pet mice.
The made you can add this mouse.
As I feel it should not be alone

Thank you.