As far as the color goes (IF you are looking for descriptive terms to use in a SELL line on eBay),
I would go with
HUGE YELLOW OPALINE TRANSLUCENT URANIUM APOTHECARY VASELINE JAR
and list it in the vaseline glass and medical supply sections.
If it is a family piece, you just have to keep it! A lot of this color came out of France from Vallerysthal and Portieux. The French call it OURALINE is the most common word I have found on French eBay. I am not sure exactly where your piece came from, but it is too translucent (in my humble opinion) to call it custard glass. Custard glass collectors would consider it not opaque enough (and they are more into pattern glass than blown mold items).
As far as what you can use it for? Easy! It is an apothecary jar (the BIG size!), so put cotton balls in it! This one could hold the entire bag!
I have a tall bathroom bottle with stopper in almost this color and the stopper is solid. The stopper is bigger than a golf ball!
aka: Mr. Vaseline Glass