Looks like a Arisaka but not sure what type. The end of the bolt looks different than one's I've seen. Most of them have the mum engraving ground off the receiver, it was required by the emperor when Japan surrendered. I think the ones that still have it are worth a little more.
Yes it is a type 38 in 6.5 Arisaka. The intact mum gives it more value but at this time they aren't worth a great deal. If it is in good shape and you hang onto it for a few years I think you will realize a few hundred out of it, They are collectible.
Yes it is definately a Type 38 Arisaka. It says so on the receiver. It is in pretty good shape for the metal. Average shape for the wood. The 38 is worth more than a Type 91 on average, less than a Type 44. With the mum intact it sells for about $300 in the shape yours is in. Get some 6.5 Arisaka rounds and take it out and shoot it.
Thats what I would do if it looks to be in fireable condition.
The guns with the "Mum" is a battle field pick up. When troops surrendered they turned their arms over intact. Guns with the "Mum" ground off were guns in storage after Japan surrendered. Gun taken in battle are worth more. That is also the rifle issued to British Troops in WWI. England bought the Arisaki 6.5 rifles due a shortage of Enfields.