"Even today there are Shinto ceremonies at major shrines such as Ise Jingu in Mie prefecture and other shrines that involve the burning of Tamma (marijuana)."
Shinto is about living in harmony with nature and society. There aren't any particular prohibitions, though if pressed a Shinto priest would most likely tell you to obey the law because that's part of living in harmony with society.
It wouldn't be a bad idea to make an offering first. Shinto is very practical in that once you have made the offering and concluded your ritual you get to eat/drink/smoke the materials offered.
does the shinto religion look down upon smoking weed?
