2858
Although acetylcholinesterase ( AChE ) is primarily a hydrolytic enzyme , metabolising the neurotransmitter acetylcholine in cholinergic synapses , it also has some non - catalytic functions in the brain which are far less well characterised .
 Chemical: acetylcholine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: acetylcholine