Royal Jelly is to deposit HoneyBee's native token, a.BEE, to earn 3rd party tokens such as AVAX, BTC.e, WETH.e and so on.
Royal Jelly is a fork of PancakeSwap's Syrup Pool.
You can find more details here.
There will be various kinds of Royal Jelly pools before the official start of layer 3 farming.
There's 3% of withdrawal fee until 3 days (72hours) after deposit.
After the 3 days, the fee becomes 0%.